PSLE Abi and Xylia each had a plate of dough of the same mass for making puffs. The same mass of dough was used for each puff. Abi made 33 puffs and had 230 g of dough left. Xylia made 13 puffs and had 1.03 kg of dough left.
- What was the mass of dough needed for each puff?
- With the remaining dough from both girls, how many more such puffs can be made at most?
(a)
Difference between the number of puffs made by Abi and Xylia
= 33 - 13
= 20
1 kg = 1000 g
1.03 kg = 1.03 x 1000 = 1030 g
Difference between the remaining dough left by Xylia and Abi
= 1030 - 230
= 800 g
Mass of 20 puffs = 800 g
Mass of 1 puff
= 800 ÷ 20
= 40 g
(b)
Total remaining dough left
= 1030 + 230
= 1260 g
Sets of 40 g
= 1260 ÷ 40
= 31 r 20
Number of puffs = 31
Answer(s): (a) 40 g; (b) 31